Low insertion force grommet

Abstract

A grommet for securement in a suitable aperture existing in a wall. The aperture has a diameter and the grommet comprises a body having a first portion formed to be secured to a cable which has a diameter. A flexible, second portion defines a closed chamber when the grommet is fixed to the cable, the second portion having a maximum unflexed outer dimension slightly greater than the diameter of the aperture and a maximum inner dimension substantially greater than the diameter of the cable. A third portion has a diameter substantially greater than the diameter of the aperture with a planar area between the second and third portions. An aperture engaging groove is formed in the planar area, the aperture engaging groove having a diameter substantially equal to the diameter of the aperture.

What is claimed is: 
     
       1. A grommet (10) comprising: a flexible, hollow, bulbous body arranged along a longitudinal axis and having a first portion, a third portion (28) and a central portion between said first and third portions and having a bulbous hollow interior; said first portion and said third portion having an axially aligned opening extending therethrough and adapted to snugly receive a cable therein, said first portion being elongated and having an internal surface having a plurality of cable gripping ribs formed thereon and an external surface formed to provide a clamp receiving area; said third portion having a peripheral flange extending therefrom normal to said longitudinal axis, said flange having a first angled surface facing axially toward said first portion; a first radially facing circumferential groove formed in said central portion adjacent said flange; and a second axially facing, circumferential groove (36) formed in said first surface of said flange.